WO2008018787A1 - Dispositif pour appliquer un mélange visqueux sur une surface et procédé de fabrication d'un élément d'isolation - Google Patents

Dispositif pour appliquer un mélange visqueux sur une surface et procédé de fabrication d'un élément d'isolation Download PDF

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Publication number
WO2008018787A1
WO2008018787A1 PCT/NL2007/000195 NL2007000195W WO2008018787A1 WO 2008018787 A1 WO2008018787 A1 WO 2008018787A1 NL 2007000195 W NL2007000195 W NL 2007000195W WO 2008018787 A1 WO2008018787 A1 WO 2008018787A1
Authority
WO
WIPO (PCT)
Prior art keywords
distribution element
viscous mixture
outlet openings
distribution
sectional area
Prior art date
Application number
PCT/NL2007/000195
Other languages
English (en)
Inventor
Antonius Cornelis Johannes Maria Van Der Meer
Original Assignee
Basf Se
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Basf Se filed Critical Basf Se
Priority to PL07793834T priority Critical patent/PL2051818T3/pl
Priority to SI200730971T priority patent/SI2051818T1/sl
Priority to EP07793834A priority patent/EP2051818B1/fr
Priority to DK07793834.8T priority patent/DK2051818T3/da
Priority to ES07793834T priority patent/ES2386988T3/es
Publication of WO2008018787A1 publication Critical patent/WO2008018787A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/027—Coating heads with several outlets, e.g. aligned transversally to the moving direction of a web to be coated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/36—Feeding the material to be shaped
    • B29C44/46—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length
    • B29C44/461—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length dispensing apparatus, e.g. dispensing foaming resin over the whole width of the moving surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter

Definitions

  • the present invention relates to a device for applying a viscous mixture to a surface via one or more outlet openings, to which device the viscous mixture is supplied via supply means, which supply means is connected to a first distribution element, which first distribution element is connected to a second distribution element via two or more intermediate pipes, which second distribution element is provided with outlet openings.
  • the present invention further relates to a method for manufacturing an insulation element, comprising the steps of applying a viscous mixture that forms a foam to a substrate layer, allowing the foam thus applied to cure and possibly applying a coating to the foam layer.
  • a distributing device for distributing glue substantially uniformly over a surface comprising: a main distribution chamber comprising a number of outlet openings for discharging glue from the distributing device and applying it to said surface; a predistribution chamber comprising a number of distribution openings for supplying glue from the predistribution chamber to the main distribution chamber; and at least one supply opening for supplying the glue to said predistribution chamber, with the position and size of the distribution openings having been selected so that, in use, a substantially uniform pressure distribution of the glue in the main distribution chamber is effected.
  • the production process of roof elements can in principle be summarised to comprise three stages, viz. first a foam, viz. polyurethane (PUR) or polyisocyanurate (PIR), is applied to a slightly pre-heated chipboard, whereupon the foam will rise, after which finally a cover layer or coating is applied thereto.
  • a foam viz. polyurethane (PUR) or polyisocyanurate (PIR)
  • PUR polyurethane
  • PIR polyisocyanurate
  • An outflow element in particular a so-called casting rake (poker) is used for applying the foam, which outflow element is provided with a viscous mixture from a central point, with the viscous mixture exiting the casting rake at the bottom side via outlet openings, which outlet openings are provided along substantially the entire length of the casting rake.
  • the application of the foam takes place by moving the casting rake in a specific dynamic pattern over the surface moving thereunder.
  • levelling of the foam layer thus provided takes place by means of an air knife, which levelling comprises blowing so-called air slots into the foam in the longitudinal direction of the surface, which air cuts through the foam layer.
  • the present inventors have found that when the aforesaid T-rake is used, there is a difference in exit velocity between the various outlet openings, which difference in exit velocity adversely affects the mass distribution of the foam layer applied to the surface.
  • the present inventors have further found that when the exit velocity of the viscous mixture is too high, this will lead to the introduction of air bubbles in the foam layer, which air bubbles may or may not migrate to the surface of the foam layer. A foam layer containing small air bubbles is undesirable in practice.
  • the present inventors have furthermore found that a uniform residence time of the foaming mixture across the casting rake is not obtained when such a T-rake is used, which may lead to fouling and clogging of the casting rake and the outlet openings present therein, in particular to premature and consequently undesirable curing of the foaming material therein. In the case of higher foam thicknesses, when a so-called double pass is carried out, the second layer that is applied affects the foam layer present thereunder, which is undesirable.
  • a reciprocating casting rake can only effect a uniform distribution of foam on a substrate moving thereunder if both the belt velocity of the surface and the so- called pass velocity of the casting rake are precisely geared to each other, which is very difficult and labourious to realise in practice.
  • Another object of the present invention is to provide a device for applying a viscous mixture to a surface via one or more outlet openings, wherein the phenomenon of a bow wave being formed by the viscous mixture flowing onto the surface from the outlet openings is minimised.
  • the device as referred to in the introduction is characterised in that at least one outlet opening is provided on the second distribution opening on either side of each intermediate pipe.
  • the first distribution element provides a constant pressure on the viscous mixture that is present therein, whereupon the viscous mixture is supplied to the second distribution element via two or more intermediate pipes, after which the viscous mixture exits the second distribution element via a number of outlet openings, being deposited on a surface present under the outlet openings.
  • the reactive mixture supplied to the second distribution element via the intermediate pipes will exit said element via the specific position of the outlet openings.
  • a substantially constant and uniform residence time of the reactive mixture in the second distribution element is achieved, which is of major importance for the foaming reaction, in particular for obtaining an even foam height across the entire width of the surface.
  • Another effect that is achieved is that there will be no "dead or substantially stagnant" spaces or spaces with a significantly longer residence time, which longer residence time may lead to premature and undesirable curing of the reactions mixture therein, resulting in clogging, which in turn will have an adverse effect on the realisation of a uniform residence time.
  • an uneven number of outlet openings is provided on the second distribution element between two intermediate pipes arranged adjacent to each other, in particular that said number of outlet openings is at least three.
  • An uneven number provides a constant and uniform distribution of the reactive mixture over the outlet openings, thereby minimising the risk of the formation of "dead" spaces.
  • the cross-sectional area of both outlet openings near the two ends of the second distribution element is larger than the cross-sectional area of the adjacent outlet opening(s).
  • Such a construction is in particular desirable because a certain contraction of the foam at the outer edges of the surface is observed during the foaming reaction, which contraction is eliminated by slightly increasing the metered amount of foam at the ends in comparison with the amount of foam metered via the adjacent outlet opening(s).
  • the intermediate pipes are spaced a regular, constant distance apart.
  • Such intermediate pipes are hollow, so that the viscous mixture can flow from the first distribution element to the second distribution element. It is moreover desirable that the intermediate pipes are removable, so that cleaning and maintenance activities can be carried out in a simple manner.
  • the outlet openings on the second distribution element are staggered relative to the position of the intermediate pipes.
  • the cross-sectional area of the outflow opening located at the end of the second distribution element is larger than the cross-sectional area of the adjacent outlet opening(s) in order to thus obtain a larger amount of foam on the surface, so that a substantially flat foam mass is obtained on the surface, both across the width and along the length thereof, after completion of the foaming reaction.
  • Such outlet openings having a larger cross-sectional area, which are located at both ends of the second distribution element, thus provide a correction of the foam contraction at both edges of the surface.
  • the first distribution element preferably has an elongated, hollow configuration, in which connection in particular a tubular configuration must be considered. It is also possible, however, to give the first distribution element a specific profile shape.
  • the second distribution element preferably has an elongated, hollow configuration so as to realise a maximally homogeneous flow of the viscous mixture therein. It is moreover possible to use the second distribution element in a profile construction.
  • both the first and the second distribution element makes it possible to carry out the internal cleaning thereof in a simple and accurate manner by means of the usual operations. Furthermore, the two distribution elements are preferably removable.
  • the cross- sectional area of the first distribution element is larger than the cross-sectional area of the second distribution element.
  • the supply means is positioned in the centre of the first distribution element, in particular with a view to realising a uniform residence time of the viscous mixture across the first distribution element.
  • the supply means in particular comprises a mixing chamber, to which mixing chamber a first pipe for reactants and a second pipe for reactants are connected.
  • the viscous mixture comprises a polyurethane foam (PUR)
  • PUR polyurethane foam
  • polyol mixed with activators and other components for example, is supplied via the first pipe, and isocyanate is supplied via the second pipe for reactants.
  • the aforesaid flows viz. the polyol mixture and isocyanate, come into contact with each other at a high speed in the mixing chamber preferably, forming a homogeneous mixture in the mixing chamber, which mixture is subsequently supplied to the first distribution element via the supply means.
  • a PIR foam can be obtained.
  • the present invention is in particular not limited to a second distribution element consisting of one element, but in a special embodiment the second distribution element may be made up of at least two separate distribution elements, each provided with outlet openings and being connected to the first distribution element via one or more intermediate pipes.
  • the length of the second distribution element substantially corresponds to the width of the surface to which the viscous mixture can be applied.
  • the term stationary is to be understood to mean that the element does not move in a zigzag pattern for applying the viscous mixture to the surface. Such a zigzag pattern is possible within the framework of the present invention, however, more in particular, there is no need to realise an overlapping pattern of viscous mixture on the surface.
  • the cross-sectional area of the outlet openings is variable along the length of the second distribution element, in particular in order to obtain an optimally homogeneous discharge from each of the outflow openings. This means that the cross-sectional area of one outlet opening is different from that of the other outlet opening.
  • the cross-sectional area of the intermediate pipes is variable along the length of the first distribution element, in particular in order to obtain a uniform and stable metering of the mixture from the first distribution element to the second distribution element. This means that the cross-sectional area of one the intermediate pipe is different from that of the other intermediate pipe.
  • the cross-sectional area of both the first distribution element and the second distribution element is substantially constant along the length of each distribution element, in particular with a view to realising an easy cleaning of the two distribution elements.
  • the present inventors have furthermore found that the outlet openings in the second distribution element are so positioned that the viscous mixture can be deposited on the surface at an angle of -75 to + 75 degrees, which angle may be regarded as the angle between the direction of flow of the outflowing viscous mixture and the surface.
  • the intermediate pipes form one or more detachable connections between the first distribution element and a second distribution element, in particular for cleaning purposes.
  • the present invention further relates to a method for manufacturing an insulation element, comprising the steps of applying a viscous mixture that forms a foam to a substrate layer, allowing the foam thus applied to cure and possibly applying a coating to the foam layer, wherein a device as discussed above is used for applying said viscous mixture, wherein the viscous mixture is deposited on the substrate layer via a supply means, the first distribution element, the intermediate pipes, the second distribution element and the outlet openings.
  • the appended figure shows a perspective view of the present device 10 for applying a viscous mixture (not shown) to a surface (not shown) via one or more outlet openings 7.
  • the device 10 comprises a supply means 8, which supply means 8 is connected to a mixing chamber 3, to which a first pipe 1 for reactants and a second pipe 2 for reactants are connected, to which pipe 1 a mixture of polyol, activators and other components is supplied, for example, lsocyanate is supplied via the pipe 2, in particular if the viscous mixture is a foam for preparing PUR.
  • the present invention is not restricted to a PUR foam.
  • the second distribution element 6 possesses a number of evenly spaced outlet openings 7, from which the viscous mixture can be deposited to a surface (not shown).
  • the outlet openings 7 on the second distribution element 6 are slightly staggered relative to the position of the intermediate pipes 5, which means that the viscous mixture exiting the intermediate pipe 5 cannot flow "straight" to an outlet opening 7 positioned on the second distribution element 6, but needs to travel along a slightly “lengthened” path in the second distribution element
  • the second distribution element 6 is provided on either side of each intermediate pipe 5.
  • An uneven number of outlet openings 7 is provided on the second distribution element 6 between two intermediate pipes 5 arranged side by side. It is desirable that the cross-sectional area of both outlet openings near the two ends of the second distribution element is larger than the cross-sectional area of the adjacent outlet opening(s).
  • the present invention is by no means limited to the number of intermediate pipes 5 and outlet openings 7 shown in the figure.
  • the distribution elements 4, 6 are not limited to a cylindrical configuration as shown, but that it may also have a profile shape.
  • the second distribution element 6 may be configured as two separate distribution elements, in which case the two distribution element thus configured may be in line, for example extending parallel to the first distribution element 4.
  • the present invention in particular relates to the application of the viscous mixture to a surface, with the viscous mixture having a substantially homogeneous distribution both in the longitudinal direction and in the transverse direction of the surface.

Landscapes

  • Application Of Or Painting With Fluid Materials (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Coating Apparatus (AREA)
  • Insulating Bodies (AREA)

Abstract

La présente invention concerne un dispositif pour appliquer un mélange visqueux sur une surface via une ou plusieurs ouvertures de sortie (7), le mélange visqueux étant fourni audit dispositif par des moyens d'alimentation (8). La présente invention concerne encore un procédé de fabrication d'un élément d'isolation, comprenant les étapes consistant à appliquer un mélange visqueux qui forme une mousse sur une couche de substrat, autoriser la mousse ainsi appliquée à durcir et éventuellement appliquer un revêtement sur la couche de mousse.
PCT/NL2007/000195 2006-08-08 2007-08-07 Dispositif pour appliquer un mélange visqueux sur une surface et procédé de fabrication d'un élément d'isolation WO2008018787A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
PL07793834T PL2051818T3 (pl) 2006-08-08 2007-08-07 Urządzenie do nakładania lepkiej mieszaniny na powierzchnię jak również sposób wytwarzania elementu izolacyjnego
SI200730971T SI2051818T1 (sl) 2006-08-08 2007-08-07 Naprava za nanos viskozne mešanice na ploskev in pa postopek za izdelavo izolirnega elementa
EP07793834A EP2051818B1 (fr) 2006-08-08 2007-08-07 Dispositif pour appliquer un melange visqueux sur une surface et procede de fabrication d'un element d'isolation
DK07793834.8T DK2051818T3 (da) 2006-08-08 2007-08-07 Indretning til at påføre en viskos blanding til en overflade såvel som fremgangsmåde til fremstilling af et isolationselement
ES07793834T ES2386988T3 (es) 2006-08-08 2007-08-07 Dispositivo para aplicar una mezcla viscosa a una superficie así como procedimiento para fabricar un elemento aislante

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1032283A NL1032283C2 (nl) 2006-08-08 2006-08-08 Orgaan voor het aanbrengen van een viskeus mengsel op een ondergrond, alsmede werkwijze voor het vervaardigen van een isolatie-element.
NL1032283 2006-08-08

Publications (1)

Publication Number Publication Date
WO2008018787A1 true WO2008018787A1 (fr) 2008-02-14

Family

ID=38024329

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NL2007/000195 WO2008018787A1 (fr) 2006-08-08 2007-08-07 Dispositif pour appliquer un mélange visqueux sur une surface et procédé de fabrication d'un élément d'isolation

Country Status (9)

Country Link
EP (1) EP2051818B1 (fr)
CY (1) CY1113788T1 (fr)
DK (1) DK2051818T3 (fr)
ES (1) ES2386988T3 (fr)
NL (1) NL1032283C2 (fr)
PL (1) PL2051818T3 (fr)
PT (1) PT2051818E (fr)
SI (1) SI2051818T1 (fr)
WO (1) WO2008018787A1 (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2110487A1 (fr) 2008-04-14 2009-10-21 Unilin BVBA Elément de construction et méthode de fabrication d'éléments de construction
DE202009015838U1 (de) 2009-11-20 2010-02-18 Basf Se Vorrichtung zum Auftrag von flüssigen Reaktionsgemischen auf eine Deckschicht
EP2233271A1 (fr) 2009-03-25 2010-09-29 Bayer MaterialScience AG Eléments composites en sandwich
DE202011001109U1 (de) 2011-01-07 2011-03-17 Basf Se Vorrichtung zum Auftrag von flüssigen Reaktionsgemischen auf eine Deckschicht
WO2013002914A1 (fr) 2011-06-29 2013-01-03 Dow Global Technologies Llc Formulations de polyol permettant d'obtenir une résistance en vert améliorée de mousses de polyisocyanurate rigides
DE102011080906A1 (de) 2011-08-12 2013-02-14 Bayer Materialscience Aktiengesellschaft Vorrichtung zum Auftragen von aufschäumenden Reaktionsgemischen
EP2614943A1 (fr) 2012-01-16 2013-07-17 Bayer Intellectual Property GmbH Dispositif d'application d'un mélange réactif moussant
EP2614944A1 (fr) 2012-01-16 2013-07-17 Bayer Intellectual Property GmbH Dispositif d'application d'un mélange réactif moussant
US9718223B2 (en) 2012-01-16 2017-08-01 Covestro Deutschland Ag Device for applying a foaming reaction mixture
US9925701B2 (en) 2009-03-25 2018-03-27 Covestro Deutschland Ag Sandwich composite elements
WO2021045888A1 (fr) 2019-09-02 2021-03-11 Dow Global Technologies Llc Appareil et procédé pour appliquer un mélange de réaction de moussage sur une machine à laminer
WO2023121907A1 (fr) 2021-12-20 2023-06-29 Dow Global Technologies Llc Appareil et procédé d'application d'un mélange réactionnel moussant sur un laminateur à l'aide d'une buse divergente

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019110091A1 (de) * 2019-04-17 2020-10-22 Hennecke Gmbh Verfahren zur Herstellung einer Isolationsplatte

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US2726632A (en) * 1952-03-31 1955-12-13 Sherwin Williams Co Applicator for highly viscous liquids
US3126574A (en) * 1964-03-31 Plow type glue gun
EP0450731A1 (fr) * 1990-04-05 1991-10-09 Opstalan B.V. Elément isolant du type panneau pour toits ou murs extérieurs
DE4225618A1 (de) * 1992-08-03 1994-02-17 Elastogran Gmbh Auftragsvorrichtung für Mehrkomponentenkunststoffe
US5827360A (en) * 1996-10-09 1998-10-27 Cmi Corporation Method and equipment for producing foam bitumen
US20020015786A1 (en) * 2000-07-07 2002-02-07 Benyahia Nasli-Bakir Method of gluing and gluing machine
WO2005087386A1 (fr) 2004-03-11 2005-09-22 D. Bonne Mechanisatie B.V. Dispositif pour distribuer de la colle sur une surface
EP1586381A2 (fr) * 2004-04-16 2005-10-19 Dürr Systems GmbH Tête d'application pour produire un film liquide

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3126574A (en) * 1964-03-31 Plow type glue gun
US1971262A (en) * 1932-07-30 1934-08-21 Nathan V Hendricks Distributor head for distributor tanks
US2726632A (en) * 1952-03-31 1955-12-13 Sherwin Williams Co Applicator for highly viscous liquids
EP0450731A1 (fr) * 1990-04-05 1991-10-09 Opstalan B.V. Elément isolant du type panneau pour toits ou murs extérieurs
NL9000797A (nl) 1990-04-05 1991-11-01 Cornelis Adrianus Petrus Van O Sandwich-combi-dakelement.
DE4225618A1 (de) * 1992-08-03 1994-02-17 Elastogran Gmbh Auftragsvorrichtung für Mehrkomponentenkunststoffe
US5827360A (en) * 1996-10-09 1998-10-27 Cmi Corporation Method and equipment for producing foam bitumen
US20020015786A1 (en) * 2000-07-07 2002-02-07 Benyahia Nasli-Bakir Method of gluing and gluing machine
WO2005087386A1 (fr) 2004-03-11 2005-09-22 D. Bonne Mechanisatie B.V. Dispositif pour distribuer de la colle sur une surface
EP1586381A2 (fr) * 2004-04-16 2005-10-19 Dürr Systems GmbH Tête d'application pour produire un film liquide

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2110487A1 (fr) 2008-04-14 2009-10-21 Unilin BVBA Elément de construction et méthode de fabrication d'éléments de construction
US9242399B2 (en) 2009-03-25 2016-01-26 Bayer Materialscience Ag Sandwich composite elements
EP2233271A1 (fr) 2009-03-25 2010-09-29 Bayer MaterialScience AG Eléments composites en sandwich
WO2010108615A1 (fr) 2009-03-25 2010-09-30 Bayer Materialscience Ag Éléments composites en sandwich
CN102361737A (zh) * 2009-03-25 2012-02-22 拜尔材料科学股份公司 夹层式复合元件
US9925701B2 (en) 2009-03-25 2018-03-27 Covestro Deutschland Ag Sandwich composite elements
DE202009015838U1 (de) 2009-11-20 2010-02-18 Basf Se Vorrichtung zum Auftrag von flüssigen Reaktionsgemischen auf eine Deckschicht
DE202011001109U1 (de) 2011-01-07 2011-03-17 Basf Se Vorrichtung zum Auftrag von flüssigen Reaktionsgemischen auf eine Deckschicht
WO2012093129A1 (fr) 2011-01-07 2012-07-12 Basf Se Procédé et dispositif destinés à appliquer des mélanges réactionnels liquides sur une couche de recouvrement
WO2013002914A1 (fr) 2011-06-29 2013-01-03 Dow Global Technologies Llc Formulations de polyol permettant d'obtenir une résistance en vert améliorée de mousses de polyisocyanurate rigides
DE102011080906A1 (de) 2011-08-12 2013-02-14 Bayer Materialscience Aktiengesellschaft Vorrichtung zum Auftragen von aufschäumenden Reaktionsgemischen
WO2013023965A1 (fr) 2011-08-12 2013-02-21 Bayer Intellectual Property Gmbh Dispositif servant à l'application de mélanges réactionnels moussants
EP2614943A1 (fr) 2012-01-16 2013-07-17 Bayer Intellectual Property GmbH Dispositif d'application d'un mélange réactif moussant
EP2614944A1 (fr) 2012-01-16 2013-07-17 Bayer Intellectual Property GmbH Dispositif d'application d'un mélange réactif moussant
US9718223B2 (en) 2012-01-16 2017-08-01 Covestro Deutschland Ag Device for applying a foaming reaction mixture
US9724723B2 (en) 2012-01-16 2017-08-08 Covestro Deutschland Ag Device for applying a foaming reaction mixture
WO2021045888A1 (fr) 2019-09-02 2021-03-11 Dow Global Technologies Llc Appareil et procédé pour appliquer un mélange de réaction de moussage sur une machine à laminer
WO2023121907A1 (fr) 2021-12-20 2023-06-29 Dow Global Technologies Llc Appareil et procédé d'application d'un mélange réactionnel moussant sur un laminateur à l'aide d'une buse divergente

Also Published As

Publication number Publication date
CY1113788T1 (el) 2016-07-27
NL1032283C2 (nl) 2008-02-14
EP2051818B1 (fr) 2012-05-30
DK2051818T3 (da) 2012-07-02
ES2386988T3 (es) 2012-09-10
EP2051818A1 (fr) 2009-04-29
PL2051818T3 (pl) 2012-10-31
SI2051818T1 (sl) 2012-09-28
PT2051818E (pt) 2012-07-10

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